Adds minimum log level handling to the service

src/Tgstation.Server.Host.Service/Program.cs

@@ -33,6 +33,18 @@ namespace Tgstation.Server.Host.Service
 		[Option(ShortName = "i")]
 		public bool Install { get; set; }
 
+		/// <summary>
+		/// The --trace or -t option. Enables trace logs
+		/// </summary>
+		[Option(ShortName = "t")]
+		public bool Trace { get; set; }
+
+		/// <summary>
+		/// The --debug or -d option. Enables debug logs
+		/// </summary>
+		[Option(ShortName = "d")]
+		public bool Debug { get; set; }
+
 		/// <summary>
 		/// Check if the running user is a system administrator
 		/// </summary>
@@ -109,7 +121,7 @@ namespace Tgstation.Server.Host.Service
 				}
 			else
 				using (var loggerFactory = new LoggerFactory())
-					ServiceBase.Run(new ServerService(new WatchdogFactory(), loggerFactory));
+					ServiceBase.Run(new ServerService(new WatchdogFactory(), loggerFactory, Trace ? LogLevel.Trace : Debug ? LogLevel.Debug : LogLevel.Information));
 		}
 
 		/// <summary>

src/Tgstation.Server.Host.Service/ServerService.cs

@@ -41,7 +41,8 @@ namespace Tgstation.Server.Host.Service
 		/// </summary>
 		/// <param name="watchdogFactory">The <see cref="IWatchdogFactory"/> to create <see cref="watchdog"/> with</param>
 		/// <param name="loggerFactory">The <see cref="ILoggerFactory"/> for <paramref name="watchdogFactory"/></param>
-		public ServerService(IWatchdogFactory watchdogFactory, ILoggerFactory loggerFactory)
+		/// <param name="minumumLogLevel">The minimum <see cref="LogLevel"/> to record in the event log</param>
+		public ServerService(IWatchdogFactory watchdogFactory, ILoggerFactory loggerFactory, LogLevel minumumLogLevel)
 		{
 			if (watchdogFactory == null)
 				throw new ArgumentNullException(nameof(watchdogFactory));
@@ -50,7 +51,8 @@ namespace Tgstation.Server.Host.Service
 
 			loggerFactory.AddEventLog(new EventLogSettings
 			{
-				EventLog = this
+				EventLog = this,
+				Filter = (message, logLevel) => logLevel >= minumumLogLevel
 			});
 
 			ServiceName = Name;